BibTeX:
@incollection{Various,
  author = {Various},
  title = {I had a servant who was black; his name was Isfandiyar},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/debts},
}

APA:
Various. I had a servant who was black; his name was Isfandiyar. In *bahaistories.com archive*.

MLA:
Various. "I had a servant who was black; his name was Isfandiyar." *bahaistories.com archive*, n.d..

Chicago:
Various. "I had a servant who was black; his name was Isfandiyar." In *bahaistories.com archive*, n.d..